61612335102 has 48 divisors (see below), whose sum is σ = 134095091760. Its totient is φ = 18806902272.

The previous prime is 61612335061. The next prime is 61612335157. The reversal of 61612335102 is 20153321616.

It is a super-2 number, since 2×61612335102² (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 61612335102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80977 + ... + 360252.

It is an arithmetic number, because the mean of its divisors is an integer number (2793647745).

Almost surely, 2^61612335102 is an apocalyptic number.

61612335102 is an abundant number, since it is smaller than the sum of its proper divisors (72482756658).

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

61612335102 is a wasteful number, since it uses less digits than its factorization.

61612335102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441325 (or 441288 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 61612335102 its reverse (20153321616), we get a palindrome (81765656718).

The spelling of 61612335102 in words is "sixty-one billion, six hundred twelve million, three hundred thirty-five thousand, one hundred two".