61160015505 has 16 divisors (see below), whose sum is σ = 99460223424. Its totient is φ = 32083942080.

The previous prime is 61160015503. The next prime is 61160015561. The reversal of 61160015505 is 50551006116.

It is not a de Polignac number, because 61160015505 - 2¹ = 61160015503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61160015503) 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, 33419859 + ... + 33421688.

It is an arithmetic number, because the mean of its divisors is an integer number (6216263964).

Almost surely, 2^61160015505 is an apocalyptic number.

It is an amenable number.

61160015505 is a deficient number, since it is larger than the sum of its proper divisors (38300207919).

61160015505 is a wasteful number, since it uses less digits than its factorization.

61160015505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66841616.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 61160015505 in words is "sixty-one billion, one hundred sixty million, fifteen thousand, five hundred five".