61650156736 has 84 divisors (see below), whose sum is σ = 150681754008. Its totient is φ = 24867268608.

The previous prime is 61650156721. The next prime is 61650156769. The reversal of 61650156736 is 63765105616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524890 + ... + 631513.

Almost surely, 2^61650156736 is an apocalyptic number.

It is an amenable number.

61650156736 is an abundant number, since it is smaller than the sum of its proper divisors (89031597272).

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

61650156736 is a wasteful number, since it uses less digits than its factorization.

61650156736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156446 (or 1156429 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 61650156736 in words is "sixty-one billion, six hundred fifty million, one hundred fifty-six thousand, seven hundred thirty-six".