61501665010 has 32 divisors (see below), whose sum is σ = 113430844800. Its totient is φ = 23994771840.

The previous prime is 61501664999. The next prime is 61501665013. The reversal of 61501665010 is 1056610516.

It is not an unprimeable number, because it can be changed into a prime (61501665013) 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, 1902361 + ... + 1934419.

It is an arithmetic number, because the mean of its divisors is an integer number (3544713900).

Almost surely, 2^61501665010 is an apocalyptic number.

61501665010 is a deficient number, since it is larger than the sum of its proper divisors (51929179790).

61501665010 is a wasteful number, since it uses less digits than its factorization.

61501665010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36786.

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

The spelling of 61501665010 in words is "sixty-one billion, five hundred one million, six hundred sixty-five thousand, ten".