6161556500515 has 32 divisors (see below), whose sum is σ = 8242292116800. Its totient is φ = 4390457756160.

The previous prime is 6161556500509. The next prime is 6161556500549. The reversal of 6161556500515 is 5150056551616.

It is a happy number.

It is not a de Polignac number, because 6161556500515 - 2³ = 6161556500507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2042325 + ... + 4061305.

It is an arithmetic number, because the mean of its divisors is an integer number (257571628650).

Almost surely, 2^{6161556500515} is an apocalyptic number.

6161556500515 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6161556500515 is a deficient number, since it is larger than the sum of its proper divisors (2080735616285).

6161556500515 is a wasteful number, since it uses less digits than its factorization.

6161556500515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020647.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 6161556500515 in words is "six trillion, one hundred sixty-one billion, five hundred fifty-six million, five hundred thousand, five hundred fifteen".