75099790656 has 224 divisors, whose sum is σ = 242337945600. Its totient is φ = 22616962560.

The previous prime is 75099790639. The next prime is 75099790673. The reversal of 75099790656 is 65609799057.

75099790656 is a `hidden beast` number, since 7 + 509 + 9 + 79 + 0 + 6 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (75099790639) and next prime (75099790673).

It is a junction number, because it is equal to n+sod(n) for n = 75099790593 and 75099790602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3086185 + ... + 3110423.

Almost surely, 2^75099790656 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 75099790656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121168972800).

75099790656 is an abundant number, since it is smaller than the sum of its proper divisors (167238154944).

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

75099790656 is a wasteful number, since it uses less digits than its factorization.

75099790656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24434 (or 24418 counting only the distinct ones).

The product of its (nonzero) digits is 32148900, while the sum is 63.

The spelling of 75099790656 in words is "seventy-five billion, ninety-nine million, seven hundred ninety thousand, six hundred fifty-six".