10661936964 has 48 divisors (see below), whose sum is σ = 28913740800. Its totient is φ = 2994634656.

The previous prime is 10661936951. The next prime is 10661936969. The reversal of 10661936964 is 46963916601.

It is a super-2 number, since 2×10661936964² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661936969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070704 + ... + 1080615.

It is an arithmetic number, because the mean of its divisors is an integer number (602369600).

Almost surely, 2^10661936964 is an apocalyptic number.

10661936964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10661936964 is an abundant number, since it is smaller than the sum of its proper divisors (18251803836).

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

10661936964 is a wasteful number, since it uses less digits than its factorization.

10661936964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151392 (or 2151390 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 10661936964 in words is "ten billion, six hundred sixty-one million, nine hundred thirty-six thousand, nine hundred sixty-four".