61196206137 has 32 divisors (see below), whose sum is σ = 90632715264. Its totient is φ = 36417163200.

The previous prime is 61196206103. The next prime is 61196206153. The reversal of 61196206137 is 73160269116.

It is not a de Polignac number, because 61196206137 - 2⁷ = 61196206009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61196206537) 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, 643123 + ... + 732119.

It is an arithmetic number, because the mean of its divisors is an integer number (2832272352).

Almost surely, 2^61196206137 is an apocalyptic number.

61196206137 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

61196206137 is a deficient number, since it is larger than the sum of its proper divisors (29436509127).

61196206137 is a wasteful number, since it uses less digits than its factorization.

61196206137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89389.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 61196206137 in words is "sixty-one billion, one hundred ninety-six million, two hundred six thousand, one hundred thirty-seven".