16160611540 has 12 divisors (see below), whose sum is σ = 33937284276. Its totient is φ = 6464244608.

The previous prime is 16160611507. The next prime is 16160611541. The reversal of 16160611540 is 4511606161.

It can be written as a sum of positive squares in 2 ways, for example, as 8627065924 + 7533545616 = 92882^2 + 86796^2 .

It is a super-2 number, since 2×16160611540² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16160611541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404015269 + ... + 404015308.

It is an arithmetic number, because the mean of its divisors is an integer number (2828107023).

Almost surely, 2^16160611540 is an apocalyptic number.

16160611540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16160611540 is an abundant number, since it is smaller than the sum of its proper divisors (17776672736).

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

16160611540 is a wasteful number, since it uses less digits than its factorization.

16160611540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808030586 (or 808030584 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 16160611540 in words is "sixteen billion, one hundred sixty million, six hundred eleven thousand, five hundred forty".