61648904220530 has 32 divisors (see below), whose sum is σ = 121068028721088. Its totient is φ = 22415561387200.

The previous prime is 61648904220457. The next prime is 61648904220583. The reversal of 61648904220530 is 3502240984616.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26659517 + ... + 28879536.

It is an arithmetic number, because the mean of its divisors is an integer number (3783375897534).

Almost surely, 2^{61648904220530} is an apocalyptic number.

61648904220530 is a deficient number, since it is larger than the sum of its proper divisors (59419124500558).

61648904220530 is a wasteful number, since it uses less digits than its factorization.

61648904220530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55549162.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 61648904220530 in words is "sixty-one trillion, six hundred forty-eight billion, nine hundred four million, two hundred twenty thousand, five hundred thirty".