1620370370372 has 12 divisors (see below), whose sum is σ = 3053774928876. Its totient is φ = 747863247840.

The previous prime is 1620370370371. The next prime is 1620370370441. The reversal of 1620370370372 is 2730730730261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 297171077956 + 1323199292416 = 545134^2 + 1150304^2 .

It is a super-3 number, since 3×1620370370372³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1620370370371) 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, 15580484279 + ... + 15580484382.

It is an arithmetic number, because the mean of its divisors is an integer number (254481244073).

Almost surely, 2^{1620370370372} is an apocalyptic number.

It is an amenable number.

1620370370372 is a deficient number, since it is larger than the sum of its proper divisors (1433404558504).

1620370370372 is a wasteful number, since it uses less digits than its factorization.

1620370370372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31160968678 (or 31160968676 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 41.

The spelling of 1620370370372 in words is "one trillion, six hundred twenty billion, three hundred seventy million, three hundred seventy thousand, three hundred seventy-two".