2091031916607 has 20 divisors (see below), whose sum is σ = 3148235878656. Its totient is φ = 1383044725440.

The previous prime is 2091031916549. The next prime is 2091031916639. The reversal of 2091031916607 is 7066191301902.

2091031916607 is a `hidden beast` number, since 2 + 0 + 9 + 1 + 0 + 31 + 9 + 1 + 6 + 607 = 666.

It is not a de Polignac number, because 2091031916607 - 2¹⁵ = 2091031883839 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091038916607) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 101624394 + ... + 101644967.

Almost surely, 2^{2091031916607} is an apocalyptic number.

2091031916607 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2091031916607 is a deficient number, since it is larger than the sum of its proper divisors (1057203962049).

2091031916607 is a wasteful number, since it uses less digits than its factorization.

2091031916607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203269500 (or 203269491 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 2091031916607 in words is "two trillion, ninety-one billion, thirty-one million, nine hundred sixteen thousand, six hundred seven".