61601515006 has 16 divisors (see below), whose sum is σ = 93643315920. Its totient is φ = 30388578880.

The previous prime is 61601514991. The next prime is 61601515069. The reversal of 61601515006 is 60051510616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293296 + ... + 457411.

It is an arithmetic number, because the mean of its divisors is an integer number (5852707245).

Almost surely, 2^61601515006 is an apocalyptic number.

61601515006 is a deficient number, since it is larger than the sum of its proper divisors (32041800914).

61601515006 is a wasteful number, since it uses less digits than its factorization.

61601515006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751259.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 61601515006 in words is "sixty-one billion, six hundred one million, five hundred fifteen thousand, six".