11999501688242 has 16 divisors (see below), whose sum is σ = 18037696832064. Its totient is φ = 5986949478000.

The previous prime is 11999501688197. The next prime is 11999501688257. The reversal of 11999501688242 is 24288610599911.

11999501688242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11999501688242² (a number of 27 digits) contains 22 as substring.

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, 1557734 + ... + 5140577.

It is an arithmetic number, because the mean of its divisors is an integer number (1127356052004).

Almost surely, 2^{11999501688242} is an apocalyptic number.

11999501688242 is a deficient number, since it is larger than the sum of its proper divisors (6038195143822).

11999501688242 is a wasteful number, since it uses less digits than its factorization.

11999501688242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700225.

The product of its (nonzero) digits is 22394880, while the sum is 65.

The spelling of 11999501688242 in words is "eleven trillion, nine hundred ninety-nine billion, five hundred one million, six hundred eighty-eight thousand, two hundred forty-two".