1373021650620 has 72 divisors (see below), whose sum is σ = 4277395397184. Its totient is φ = 356243453568.

The previous prime is 1373021650613. The next prime is 1373021650621. The reversal of 1373021650620 is 260561203731.

1373021650620 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 0 + 21 + 6 + 5 + 0 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373021650621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103073044 + ... + 103086363.

Almost surely, 2^{1373021650620} is an apocalyptic number.

1373021650620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373021650620 is an abundant number, since it is smaller than the sum of its proper divisors (2904373746564).

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

1373021650620 is a wasteful number, since it uses less digits than its factorization.

1373021650620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206159459 (or 206159454 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 1373021650620 in words is "one trillion, three hundred seventy-three billion, twenty-one million, six hundred fifty thousand, six hundred twenty".