11958560998 has 16 divisors (see below), whose sum is σ = 18137335104. Its totient is φ = 5912881920.

The previous prime is 11958560989. The next prime is 11958561001. The reversal of 11958560998 is 89906585911.

It is a super-2 number, since 2×11958560998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223603 + ... + 271873.

It is an arithmetic number, because the mean of its divisors is an integer number (1133583444).

Almost surely, 2^11958560998 is an apocalyptic number.

11958560998 is a deficient number, since it is larger than the sum of its proper divisors (6178774106).

11958560998 is a wasteful number, since it uses less digits than its factorization.

11958560998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49647.

The product of its (nonzero) digits is 6998400, while the sum is 61.

The spelling of 11958560998 in words is "eleven billion, nine hundred fifty-eight million, five hundred sixty thousand, nine hundred ninety-eight".