1320730804554 has 64 divisors (see below), whose sum is σ = 3047391072000. Its totient is φ = 373796172288.

The previous prime is 1320730804553. The next prime is 1320730804567. The reversal of 1320730804554 is 4554080370231.

It is a super-2 number, since 2×1320730804554² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1320730804553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1546222 + ... + 2243270.

It is an arithmetic number, because the mean of its divisors is an integer number (47615485500).

Almost surely, 2^{1320730804554} is an apocalyptic number.

1320730804554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1320730804554 is an abundant number, since it is smaller than the sum of its proper divisors (1726660267446).

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

1320730804554 is a wasteful number, since it uses less digits than its factorization.

1320730804554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697487.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 1320730804554 in words is "one trillion, three hundred twenty billion, seven hundred thirty million, eight hundred four thousand, five hundred fifty-four".