366213423640 has 64 divisors (see below), whose sum is σ = 834261573600. Its totient is φ = 144664055808.

The previous prime is 366213423617. The next prime is 366213423671. The reversal of 366213423640 is 46324312663.

It is a happy number.

It is a super-2 number, since 2×366213423640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 366213423593 and 366213423602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710906 + ... + 1913014.

Almost surely, 2^366213423640 is an apocalyptic number.

It is an amenable number.

366213423640 is an abundant number, since it is smaller than the sum of its proper divisors (468048149960).

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

366213423640 is a wasteful number, since it uses less digits than its factorization.

366213423640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202684 (or 202680 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 40.

The spelling of 366213423640 in words is "three hundred sixty-six billion, two hundred thirteen million, four hundred twenty-three thousand, six hundred forty".