61001105056 has 12 divisors (see below), whose sum is σ = 120095925642. Its totient is φ = 30500552512.

The previous prime is 61001105047. The next prime is 61001105119. The reversal of 61001105056 is 65050110016.

It can be written as a sum of positive squares in only one way, i.e., 54888992656 + 6112112400 = 234284^2 + 78180^2 .

It is a super-2 number, since 2×61001105056² (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 61001105056.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953142235 + ... + 953142298.

Almost surely, 2^61001105056 is an apocalyptic number.

It is an amenable number.

61001105056 is a deficient number, since it is larger than the sum of its proper divisors (59094820586).

61001105056 is a wasteful number, since it uses less digits than its factorization.

61001105056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906284543 (or 1906284535 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 61001105056 in words is "sixty-one billion, one million, one hundred five thousand, fifty-six".