97990011111000 has 256 divisors, whose sum is σ = 313487474227200. Its totient is φ = 25468766592000.

The previous prime is 97990011110983. The next prime is 97990011111011. The reversal of 97990011111000 is 11111009979.

It is a self number, because there is not a number n which added to its sum of digits gives 97990011111000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127413619 + ... + 128180381.

It is an arithmetic number, because the mean of its divisors is an integer number (1224560446200).

Almost surely, 2^{97990011111000} 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 97990011111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156743737113600).

97990011111000 is an abundant number, since it is smaller than the sum of its proper divisors (215497463116200).

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

97990011111000 is a wasteful number, since it uses less digits than its factorization.

97990011111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767867 (or 767853 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 39.

The spelling of 97990011111000 in words is "ninety-seven trillion, nine hundred ninety billion, eleven million, one hundred eleven thousand".