661079037 has 16 divisors (see below), whose sum is σ = 914239872. Its totient is φ = 424555200.

The previous prime is 661078997. The next prime is 661079047. The reversal of 661079037 is 730970166.

It is not a de Polignac number, because 661079037 - 2⁷ = 661078909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 661078986 and 661079004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661079047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18273 + ... + 40694.

It is an arithmetic number, because the mean of its divisors is an integer number (57139992).

Almost surely, 2^661079037 is an apocalyptic number.

It is an amenable number.

661079037 is a deficient number, since it is larger than the sum of its proper divisors (253160835).

661079037 is a wasteful number, since it uses less digits than its factorization.

661079037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59108.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 661079037 is about 25711.4573099231. The cubic root of 661079037 is about 871.1329921011.

The spelling of 661079037 in words is "six hundred sixty-one million, seventy-nine thousand, thirty-seven".