61920318201 has 32 divisors (see below), whose sum is σ = 95774792448. Its totient is φ = 34851824640.

The previous prime is 61920318199. The next prime is 61920318233. The reversal of 61920318201 is 10281302916.

It is not a de Polignac number, because 61920318201 - 2¹ = 61920318199 is a prime.

It is a super-2 number, since 2×61920318201² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61920318301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140075 + ... + 1193151.

It is an arithmetic number, because the mean of its divisors is an integer number (2992962264).

Almost surely, 2^61920318201 is an apocalyptic number.

It is an amenable number.

61920318201 is a deficient number, since it is larger than the sum of its proper divisors (33854474247).

61920318201 is a wasteful number, since it uses less digits than its factorization.

61920318201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53921.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 61920318201 in words is "sixty-one billion, nine hundred twenty million, three hundred eighteen thousand, two hundred one".