61166155036 has 24 divisors (see below), whose sum is σ = 123295563776. Its totient is φ = 26007654960.

The previous prime is 61166155027. The next prime is 61166155051. The reversal of 61166155036 is 63055166116.

It is a super-2 number, since 2×61166155036² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61166155036.

It is a congruent number.

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, 8596860 + ... + 8603971.

Almost surely, 2^61166155036 is an apocalyptic number.

It is an amenable number.

61166155036 is an abundant number, since it is smaller than the sum of its proper divisors (62129408740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61166155036 is a wasteful number, since it uses less digits than its factorization.

61166155036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17200969 (or 17200967 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 61166155036 in words is "sixty-one billion, one hundred sixty-six million, one hundred fifty-five thousand, thirty-six".