61667288950 has 12 divisors (see below), whose sum is σ = 114701157540. Its totient is φ = 24666915560.

The previous prime is 61667288939. The next prime is 61667288951. The reversal of 61667288950 is 5988276616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61667288951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616672840 + ... + 616672939.

It is an arithmetic number, because the mean of its divisors is an integer number (9558429795).

Almost surely, 2^61667288950 is an apocalyptic number.

61667288950 is a deficient number, since it is larger than the sum of its proper divisors (53033868590).

61667288950 is a wasteful number, since it uses less digits than its factorization.

61667288950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233345791 (or 1233345786 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 61667288950 in words is "sixty-one billion, six hundred sixty-seven million, two hundred eighty-eight thousand, nine hundred fifty".