61845161676 has 24 divisors (see below), whose sum is σ = 144340869120. Its totient is φ = 20609983632.

The previous prime is 61845161659. The next prime is 61845161711. The reversal of 61845161676 is 67616154816.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582796 + ... + 680691.

It is an arithmetic number, because the mean of its divisors is an integer number (6014202880).

Almost surely, 2^61845161676 is an apocalyptic number.

It is an amenable number.

61845161676 is an abundant number, since it is smaller than the sum of its proper divisors (82495707444).

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

61845161676 is a wasteful number, since it uses less digits than its factorization.

61845161676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267573 (or 1267571 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 61845161676 in words is "sixty-one billion, eight hundred forty-five million, one hundred sixty-one thousand, six hundred seventy-six".