1553020054320 has 80 divisors (see below), whose sum is σ = 5502128198400. Its totient is φ = 354976012032.

The previous prime is 1553020054319. The next prime is 1553020054337. The reversal of 1553020054320 is 234500203551.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 462206670 + ... + 462210029.

It is an arithmetic number, because the mean of its divisors is an integer number (68776602480).

Almost surely, 2^{1553020054320} is an apocalyptic number.

1553020054320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553020054320 is an abundant number, since it is smaller than the sum of its proper divisors (3949108144080).

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

1553020054320 is a wasteful number, since it uses less digits than its factorization.

1553020054320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924416722 (or 924416716 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 1553020054320 its reverse (234500203551), we get a palindrome (1787520257871).

The spelling of 1553020054320 in words is "one trillion, five hundred fifty-three billion, twenty million, fifty-four thousand, three hundred twenty".