155155416 has 64 divisors (see below), whose sum is σ = 418975200. Its totient is φ = 47597568.

The previous prime is 155155411. The next prime is 155155421. The reversal of 155155416 is 614551551.

It is an interprime number because it is at equal distance from previous prime (155155411) and next prime (155155421).

It is a super-2 number, since 2×155155416² = 48146406228266112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155155411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158320 + ... + 159296.

Almost surely, 2^155155416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155155416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209487600).

155155416 is an abundant number, since it is smaller than the sum of its proper divisors (263819784).

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

155155416 is a wasteful number, since it uses less digits than its factorization.

155155416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1504 counting only the distinct ones).

The product of its digits is 15000, while the sum is 33.

The square root of 155155416 is about 12456.1396909315. The cubic root of 155155416 is about 537.3480122639.

The spelling of 155155416 in words is "one hundred fifty-five million, one hundred fifty-five thousand, four hundred sixteen".