61669701592 has 32 divisors (see below), whose sum is σ = 121841391600. Its totient is φ = 29181993984.

The previous prime is 61669701589. The next prime is 61669701593. The reversal of 61669701592 is 29510796616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61669701593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59133 + ... + 356140.

Almost surely, 2^61669701592 is an apocalyptic number.

It is an amenable number.

61669701592 is a deficient number, since it is larger than the sum of its proper divisors (60171690008).

61669701592 is a wasteful number, since it uses less digits than its factorization.

61669701592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416275 (or 416271 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 61669701592 in words is "sixty-one billion, six hundred sixty-nine million, seven hundred one thousand, five hundred ninety-two".