61165102312020 has 96 divisors (see below), whose sum is σ = 195730640130816. Its totient is φ = 13980429619200.

The previous prime is 61165102312001. The next prime is 61165102312043. The reversal of 61165102312020 is 2021320156116.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 36673860 + ... + 38305380.

It is an arithmetic number, because the mean of its divisors is an integer number (2038860834696).

Almost surely, 2^{61165102312020} is an apocalyptic number.

61165102312020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61165102312020 is an abundant number, since it is smaller than the sum of its proper divisors (134565537818796).

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

61165102312020 is a wasteful number, since it uses less digits than its factorization.

61165102312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720801 (or 1720799 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 61165102312020 its reverse (2021320156116), we get a palindrome (63186422468136).

The spelling of 61165102312020 in words is "sixty-one trillion, one hundred sixty-five billion, one hundred two million, three hundred twelve thousand, twenty".