90078967056 has 240 divisors, whose sum is σ = 270536184576. Its totient is φ = 25585557504.

The previous prime is 90078967019. The next prime is 90078967193. The reversal of 90078967056 is 65076987009.

It is a super-2 number, since 2×90078967056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90078966987 and 90078967005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29796361 + ... + 29799383.

Almost surely, 2^90078967056 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 90078967056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135268092288).

90078967056 is an abundant number, since it is smaller than the sum of its proper divisors (180457217520).

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

90078967056 is a wasteful number, since it uses less digits than its factorization.

90078967056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 90078967056 in words is "ninety billion, seventy-eight million, nine hundred sixty-seven thousand, fifty-six".