61367108121 has 12 divisors (see below), whose sum is σ = 96699685680. Its totient is φ = 37192186680.

The previous prime is 61367108081. The next prime is 61367108149. The reversal of 61367108121 is 12180176316.

61367108121 is a `hidden beast` number, since 613 + 6 + 7 + 10 + 8 + 1 + 21 = 666.

It is not a de Polignac number, because 61367108121 - 2³⁰ = 60293366297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61367108161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309934791 + ... + 309934988.

It is an arithmetic number, because the mean of its divisors is an integer number (8058307140).

Almost surely, 2^61367108121 is an apocalyptic number.

It is an amenable number.

61367108121 is a deficient number, since it is larger than the sum of its proper divisors (35332577559).

61367108121 is a wasteful number, since it uses less digits than its factorization.

61367108121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619869796 (or 619869793 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 61367108121 in words is "sixty-one billion, three hundred sixty-seven million, one hundred eight thousand, one hundred twenty-one".