2640055101192 has 24 divisors (see below), whose sum is σ = 7150149232590. Its totient is φ = 880018367040.

The previous prime is 2640055101169. The next prime is 2640055101193. The reversal of 2640055101192 is 2911015500462.

2640055101192 is a `hidden beast` number, since 2 + 6 + 4 + 0 + 0 + 551 + 0 + 11 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2546047861956 + 94007239236 = 1595634^2 + 306606^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2640055101193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18333715909 + ... + 18333716052.

Almost surely, 2^{2640055101192} is an apocalyptic number.

It is an amenable number.

2640055101192 is an abundant number, since it is smaller than the sum of its proper divisors (4510094131398).

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

2640055101192 is a wasteful number, since it uses less digits than its factorization.

2640055101192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36667431973 (or 36667431966 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 2640055101192 in words is "two trillion, six hundred forty billion, fifty-five million, one hundred one thousand, one hundred ninety-two".