16507091377 has 16 divisors (see below), whose sum is σ = 20097423360. Its totient is φ = 13242748752.

The previous prime is 16507091351. The next prime is 16507091383. The reversal of 16507091377 is 77319070561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16507091377 is a prime.

It is a super-2 number, since 2×16507091377² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16507092377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736633 + ... + 758710.

It is an arithmetic number, because the mean of its divisors is an integer number (1256088960).

Almost surely, 2^16507091377 is an apocalyptic number.

It is an amenable number.

16507091377 is a deficient number, since it is larger than the sum of its proper divisors (3590331983).

16507091377 is a wasteful number, since it uses less digits than its factorization.

16507091377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495452.

The product of its (nonzero) digits is 277830, while the sum is 46.

The spelling of 16507091377 in words is "sixteen billion, five hundred seven million, ninety-one thousand, three hundred seventy-seven".