1620245533404 has 48 divisors (see below), whose sum is σ = 3792839178240. Its totient is φ = 538330900800.

The previous prime is 1620245533399. The next prime is 1620245533411. The reversal of 1620245533404 is 4043355420261.

It is a super-3 number, since 3×1620245533404³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9448629 + ... + 9618579.

It is an arithmetic number, because the mean of its divisors is an integer number (79017482880).

Almost surely, 2^{1620245533404} is an apocalyptic number.

It is an amenable number.

1620245533404 is an abundant number, since it is smaller than the sum of its proper divisors (2172593644836).

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

1620245533404 is a wasteful number, since it uses less digits than its factorization.

1620245533404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172530 (or 172528 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 1620245533404 in words is "one trillion, six hundred twenty billion, two hundred forty-five million, five hundred thirty-three thousand, four hundred four".