13166641632 has 48 divisors (see below), whose sum is σ = 34571238912. Its totient is φ = 4387762560.

The previous prime is 13166641619. The next prime is 13166641637. The reversal of 13166641632 is 23614666131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13166641637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417457 + ... + 447887.

It is an arithmetic number, because the mean of its divisors is an integer number (720234144).

Almost surely, 2^13166641632 is an apocalyptic number.

13166641632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13166641632 is an abundant number, since it is smaller than the sum of its proper divisors (21404597280).

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

13166641632 is a wasteful number, since it uses less digits than its factorization.

13166641632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34951 (or 34943 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The spelling of 13166641632 in words is "thirteen billion, one hundred sixty-six million, six hundred forty-one thousand, six hundred thirty-two".