155646460 has 24 divisors (see below), whose sum is σ = 327229056. Its totient is φ = 62187840.

The previous prime is 155646433. The next prime is 155646467. The reversal of 155646460 is 64646551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155646467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15894 + ... + 23746.

It is an arithmetic number, because the mean of its divisors is an integer number (13634544).

Almost surely, 2^155646460 is an apocalyptic number.

155646460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155646460 is an abundant number, since it is smaller than the sum of its proper divisors (171582596).

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

155646460 is a wasteful number, since it uses less digits than its factorization.

155646460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853 (or 8851 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 155646460 is about 12475.8350421926. The cubic root of 155646460 is about 537.9142910133.

Subtracting from 155646460 its reverse (64646551), we obtain a palindrome (90999909).

The spelling of 155646460 in words is "one hundred fifty-five million, six hundred forty-six thousand, four hundred sixty".