61640053272116 has 96 divisors (see below), whose sum is σ = 119608830351360. Its totient is φ = 27559975766400.

The previous prime is 61640053272107. The next prime is 61640053272167. The reversal of 61640053272116 is 61127235004616.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7128485705 + ... + 7128494351.

It is an arithmetic number, because the mean of its divisors is an integer number (1245925316160).

Almost surely, 2^{61640053272116} is an apocalyptic number.

It is an amenable number.

61640053272116 is a deficient number, since it is larger than the sum of its proper divisors (57968777079244).

61640053272116 is a wasteful number, since it uses less digits than its factorization.

61640053272116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13725 (or 13723 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 61640053272116 in words is "sixty-one trillion, six hundred forty billion, fifty-three million, two hundred seventy-two thousand, one hundred sixteen".