155516460 has 144 divisors (see below), whose sum is σ = 494785536. Its totient is φ = 36432000.

The previous prime is 155516411. The next prime is 155516461. The reversal of 155516460 is 64615551.

155516460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155516461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224715 + ... + 225405.

Almost surely, 2^155516460 is an apocalyptic number.

155516460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155516460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247392768).

155516460 is an abundant number, since it is smaller than the sum of its proper divisors (339269076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155516460 is a wasteful number, since it uses less digits than its factorization.

155516460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 155516460 is about 12470.6238817471. The cubic root of 155516460 is about 537.7644892645.

Subtracting from 155516460 its reverse (64615551), we obtain a palindrome (90900909).

It can be divided in two parts, 155 and 516460, that added together give a palindrome (516615).

The spelling of 155516460 in words is "one hundred fifty-five million, five hundred sixteen thousand, four hundred sixty".