155853806416 has 80 divisors (see below), whose sum is σ = 376580147328. Its totient is φ = 60705792000.

The previous prime is 155853806393. The next prime is 155853806441. The reversal of 155853806416 is 614608358551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5160576 + ... + 5190688.

Almost surely, 2^155853806416 is an apocalyptic number.

155853806416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155853806416 is an abundant number, since it is smaller than the sum of its proper divisors (220726340912).

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

155853806416 is a wasteful number, since it uses less digits than its factorization.

155853806416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340 (or 34334 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 52.

It can be divided in two parts, 155853 and 806416, that added together give a palindrome (962269).

The spelling of 155853806416 in words is "one hundred fifty-five billion, eight hundred fifty-three million, eight hundred six thousand, four hundred sixteen".