61331513061 has 32 divisors (see below), whose sum is σ = 100661548288. Its totient is φ = 32345879040.

The previous prime is 61331512997. The next prime is 61331513099. The reversal of 61331513061 is 16031513316.

It is not a de Polignac number, because 61331513061 - 2⁶ = 61331512997 is a prime.

It is a super-2 number, since 2×61331513061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61331513261) 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, 2536971 + ... + 2561031.

It is an arithmetic number, because the mean of its divisors is an integer number (3145673384).

Almost surely, 2^61331513061 is an apocalyptic number.

It is an amenable number.

61331513061 is a deficient number, since it is larger than the sum of its proper divisors (39330035227).

61331513061 is a wasteful number, since it uses less digits than its factorization.

61331513061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33421.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 61331513061 in words is "sixty-one billion, three hundred thirty-one million, five hundred thirteen thousand, sixty-one".