61151560015 has 32 divisors (see below), whose sum is σ = 90346830336. Its totient is φ = 38693773440.

The previous prime is 61151559961. The next prime is 61151560103. The reversal of 61151560015 is 51006515116.

It is not a de Polignac number, because 61151560015 - 2¹¹ = 61151557967 is a prime.

It is a congruent number.

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, 1417920 + ... + 1460410.

It is an arithmetic number, because the mean of its divisors is an integer number (2823338448).

Almost surely, 2^61151560015 is an apocalyptic number.

61151560015 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61151560015 is a deficient number, since it is larger than the sum of its proper divisors (29195270321).

61151560015 is a wasteful number, since it uses less digits than its factorization.

61151560015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45679.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 61151560015 in words is "sixty-one billion, one hundred fifty-one million, five hundred sixty thousand, fifteen".