2158895196372 has 24 divisors (see below), whose sum is σ = 5037569656000. Its totient is φ = 719610656256.

The previous prime is 2158895196371. The next prime is 2158895196431. The reversal of 2158895196372 is 2736915988512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158895196371) 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, 2204872 + ... + 3029727.

Almost surely, 2^{2158895196372} is an apocalyptic number.

It is an amenable number.

2158895196372 is an abundant number, since it is smaller than the sum of its proper divisors (2878674459628).

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

2158895196372 is a wasteful number, since it uses less digits than its factorization.

2158895196372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268975 (or 5268973 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 66.

The spelling of 2158895196372 in words is "two trillion, one hundred fifty-eight billion, eight hundred ninety-five million, one hundred ninety-six thousand, three hundred seventy-two".