61605213150015 has 48 divisors (see below), whose sum is σ = 109066443127200. Its totient is φ = 32158185405696.

The previous prime is 61605213149981. The next prime is 61605213150037. The reversal of 61605213150015 is 51005131250616.

61605213150015 is a `hidden beast` number, since 6 + 1 + 6 + 0 + 5 + 2 + 131 + 500 + 15 = 666.

It is not a de Polignac number, because 61605213150015 - 2⁹ = 61605213149503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50054604 + ... + 51270593.

It is an arithmetic number, because the mean of its divisors is an integer number (2272217565150).

Almost surely, 2^{61605213150015} is an apocalyptic number.

61605213150015 is a deficient number, since it is larger than the sum of its proper divisors (47461229977185).

61605213150015 is a wasteful number, since it uses less digits than its factorization.

61605213150015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101325496 (or 101325493 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 61605213150015 in words is "sixty-one trillion, six hundred five billion, two hundred thirteen million, one hundred fifty thousand, fifteen".