365666642 has 16 divisors (see below), whose sum is σ = 598676832. Its totient is φ = 166125120.

The previous prime is 365666641. The next prime is 365666657. The reversal of 365666642 is 246666563.

It is a junction number, because it is equal to n+sod(n) for n = 365666593 and 365666602.

It is not an unprimeable number, because it can be changed into a prime (365666641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59393 + ... + 65259.

It is an arithmetic number, because the mean of its divisors is an integer number (37417302).

Almost surely, 2^365666642 is an apocalyptic number.

365666642 is a deficient number, since it is larger than the sum of its proper divisors (233010190).

365666642 is a wasteful number, since it uses less digits than its factorization.

365666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713.

The product of its digits is 933120, while the sum is 44.

The square root of 365666642 is about 19122.4120340505. The cubic root of 365666642 is about 715.0917723336.

The spelling of 365666642 in words is "three hundred sixty-five million, six hundred sixty-six thousand, six hundred forty-two".