155572416 has 84 divisors (see below), whose sum is σ = 448926712. Its totient is φ = 51508224.

The previous prime is 155572393. The next prime is 155572427. The reversal of 155572416 is 614275551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93060 + ... + 94716.

Almost surely, 2^155572416 is an apocalyptic number.

155572416 is a gapful number since it is divisible by the number (16) 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 155572416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224463356).

155572416 is an abundant number, since it is smaller than the sum of its proper divisors (293354296).

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

155572416 is a wasteful number, since it uses less digits than its factorization.

155572416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1825 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 155572416 is about 12472.8671924301. The cubic root of 155572416 is about 537.8289787758.

The spelling of 155572416 in words is "one hundred fifty-five million, five hundred seventy-two thousand, four hundred sixteen".