61895066533512 has 128 divisors (see below), whose sum is σ = 158365446174720. Its totient is φ = 20153485184000.

The previous prime is 61895066533439. The next prime is 61895066533567. The reversal of 61895066533512 is 21533566059816.

It is a super-2 number, since 2×61895066533512² (a number of 28 digits) contains 22 as substring.

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, 521949187 + ... + 522067757.

It is an arithmetic number, because the mean of its divisors is an integer number (1237230048240).

Almost surely, 2^{61895066533512} is an apocalyptic number.

It is an amenable number.

61895066533512 is an abundant number, since it is smaller than the sum of its proper divisors (96470379641208).

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

61895066533512 is a wasteful number, since it uses less digits than its factorization.

61895066533512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121475 (or 121471 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 60.

The spelling of 61895066533512 in words is "sixty-one trillion, eight hundred ninety-five billion, sixty-six million, five hundred thirty-three thousand, five hundred twelve".