2131669398132 has 72 divisors (see below), whose sum is σ = 5712535442432. Its totient is φ = 669050539200.

The previous prime is 2131669398029. The next prime is 2131669398143. The reversal of 2131669398132 is 2318939661312.

2131669398132 is a `hidden beast` number, since 21 + 316 + 6 + 93 + 98 + 132 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25770844 + ... + 25853427.

Almost surely, 2^{2131669398132} is an apocalyptic number.

It is an amenable number.

2131669398132 is an abundant number, since it is smaller than the sum of its proper divisors (3580866044300).

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

2131669398132 is a wasteful number, since it uses less digits than its factorization.

2131669398132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51624349 (or 51624344 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The spelling of 2131669398132 in words is "two trillion, one hundred thirty-one billion, six hundred sixty-nine million, three hundred ninety-eight thousand, one hundred thirty-two".