61071156084 has 24 divisors (see below), whose sum is σ = 142505703648. Its totient is φ = 20356146400.

The previous prime is 61071156079. The next prime is 61071156121. The reversal of 61071156084 is 48065117016.

It is a super-2 number, since 2×61071156084² (a number of 22 digits) contains 22 as substring.

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, 203134 + ... + 404234.

It is an arithmetic number, because the mean of its divisors is an integer number (5937737652).

Almost surely, 2^61071156084 is an apocalyptic number.

It is an amenable number.

61071156084 is an abundant number, since it is smaller than the sum of its proper divisors (81434547564).

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

61071156084 is a wasteful number, since it uses less digits than its factorization.

61071156084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226415 (or 226413 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 61071156084 in words is "sixty-one billion, seventy-one million, one hundred fifty-six thousand, eighty-four".