1556485731030 has 32 divisors (see below), whose sum is σ = 3856067877888. Its totient is φ = 401673736800.

The previous prime is 1556485731013. The next prime is 1556485731071. The reversal of 1556485731030 is 301375846551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836819356 + ... + 836821215.

It is an arithmetic number, because the mean of its divisors is an integer number (120502121184).

Almost surely, 2^{1556485731030} is an apocalyptic number.

1556485731030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1556485731030 is an abundant number, since it is smaller than the sum of its proper divisors (2299582146858).

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

1556485731030 is a wasteful number, since it uses less digits than its factorization.

1556485731030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673640612.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 1556485731030 in words is "one trillion, five hundred fifty-six billion, four hundred eighty-five million, seven hundred thirty-one thousand, thirty".