11664516642502 has 4 divisors (see below), whose sum is σ = 17496774963756. Its totient is φ = 5832258321250.

The previous prime is 11664516642451. The next prime is 11664516642547. The reversal of 11664516642502 is 20524661546611.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11664516642502² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2916129160624 + ... + 2916129160627.

It is an arithmetic number, because the mean of its divisors is an integer number (4374193740939).

Almost surely, 2^{11664516642502} is an apocalyptic number.

11664516642502 is a deficient number, since it is larger than the sum of its proper divisors (5832258321254).

11664516642502 is an equidigital number, since it uses as much as digits as its factorization.

11664516642502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832258321253.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 11664516642502 in words is "eleven trillion, six hundred sixty-four billion, five hundred sixteen million, six hundred forty-two thousand, five hundred two".