61655206106 has 16 divisors (see below), whose sum is σ = 99666921984. Its totient is φ = 28436234544.

The previous prime is 61655206079. The next prime is 61655206111. The reversal of 61655206106 is 60160255616.

It is a self number, because there is not a number n which added to its sum of digits gives 61655206106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796226 + ... + 870221.

It is an arithmetic number, because the mean of its divisors is an integer number (6229182624).

Almost surely, 2^61655206106 is an apocalyptic number.

61655206106 is a deficient number, since it is larger than the sum of its proper divisors (38011715878).

61655206106 is a wasteful number, since it uses less digits than its factorization.

61655206106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667885.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 61655206106 in words is "sixty-one billion, six hundred fifty-five million, two hundred six thousand, one hundred six".