366516361021 has 4 divisors (see below), whose sum is σ = 366518441952. Its totient is φ = 366514280092.

The previous prime is 366516360967. The next prime is 366516361039. The reversal of 366516361021 is 120163615663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 366516361021 - 2¹⁷ = 366516229949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366516361091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749065 + ... + 1137598.

It is an arithmetic number, because the mean of its divisors is an integer number (91629610488).

Almost surely, 2^366516361021 is an apocalyptic number.

It is an amenable number.

366516361021 is a deficient number, since it is larger than the sum of its proper divisors (2080931).

366516361021 is a wasteful number, since it uses less digits than its factorization.

366516361021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080930.

The product of its (nonzero) digits is 116640, while the sum is 40.

Adding to 366516361021 its reverse (120163615663), we get a palindrome (486679976684).

The spelling of 366516361021 in words is "three hundred sixty-six billion, five hundred sixteen million, three hundred sixty-one thousand, twenty-one".