61648950008555 has 16 divisors (see below), whose sum is σ = 91050756936384. Its totient is φ = 39021752972160.

The previous prime is 61648950008531. The next prime is 61648950008621. The reversal of 61648950008555 is 55580005984616.

It is not a de Polignac number, because 61648950008555 - 2³⁸ = 61374072101611 is a prime.

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, 67746098456 + ... + 67746099365.

It is an arithmetic number, because the mean of its divisors is an integer number (5690672308524).

Almost surely, 2^{61648950008555} is an apocalyptic number.

61648950008555 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61648950008555 is a deficient number, since it is larger than the sum of its proper divisors (29401806927829).

61648950008555 is a wasteful number, since it uses less digits than its factorization.

61648950008555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135492197846.

The product of its (nonzero) digits is 51840000, while the sum is 62.

The spelling of 61648950008555 in words is "sixty-one trillion, six hundred forty-eight billion, nine hundred fifty million, eight thousand, five hundred fifty-five".