61032100570064 has 160 divisors (see below), whose sum is σ = 134801622810624. Its totient is φ = 26568478379520.

The previous prime is 61032100570043. The next prime is 61032100570073. The reversal of 61032100570064 is 46007500123016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128135519 + ... + 128610945.

Almost surely, 2^{61032100570064} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61032100570064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67400811405312).

61032100570064 is an abundant number, since it is smaller than the sum of its proper divisors (73769522240560).

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

61032100570064 is a wasteful number, since it uses less digits than its factorization.

61032100570064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475985 (or 475979 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 61032100570064 in words is "sixty-one trillion, thirty-two billion, one hundred million, five hundred seventy thousand, sixty-four".