2161023176507 has 8 divisors (see below), whose sum is σ = 2327268600384. Its totient is φ = 1994779591488.

The previous prime is 2161023176449. The next prime is 2161023176551. The reversal of 2161023176507 is 7056713201612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2161023176507 - 2²⁶ = 2160956067643 is a prime.

It is a super-3 number, since 3×2161023176507³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2161023170507) 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, 2879423 + ... + 3551495.

It is an arithmetic number, because the mean of its divisors is an integer number (290908575048).

Almost surely, 2^{2161023176507} is an apocalyptic number.

2161023176507 is a deficient number, since it is larger than the sum of its proper divisors (166245423877).

2161023176507 is a wasteful number, since it uses less digits than its factorization.

2161023176507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919429.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 2161023176507 in words is "two trillion, one hundred sixty-one billion, twenty-three million, one hundred seventy-six thousand, five hundred seven".