90835544556 has 30 divisors (see below), whose sum is σ = 237462057140. Its totient is φ = 30278514744.

The previous prime is 90835544551. The next prime is 90835544581. The reversal of 90835544556 is 65544553809.

90835544556 is a `hidden beast` number, since 9 + 0 + 8 + 35 + 54 + 4 + 556 = 666.

It is a super-2 number, since 2×90835544556² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (90835544551) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 140177986 + ... + 140178633.

Almost surely, 2^90835544556 is an apocalyptic number.

It is an amenable number.

90835544556 is an abundant number, since it is smaller than the sum of its proper divisors (146626512584).

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

90835544556 is a wasteful number, since it uses less digits than its factorization.

90835544556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280356635 (or 280356624 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 90835544556 in words is "ninety billion, eight hundred thirty-five million, five hundred forty-four thousand, five hundred fifty-six".