1551322130472 has 96 divisors (see below), whose sum is σ = 4346705867400. Its totient is φ = 499238272512.

The previous prime is 1551322130437. The next prime is 1551322130489. The reversal of 1551322130472 is 2740312231551.

1551322130472 is a `hidden beast` number, since 1 + 5 + 5 + 132 + 21 + 30 + 472 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 355199312196 + 1196122818276 = 595986^2 + 1093674^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44158258 + ... + 44193374.

Almost surely, 2^{1551322130472} is an apocalyptic number.

1551322130472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551322130472 is an abundant number, since it is smaller than the sum of its proper divisors (2795383736928).

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

1551322130472 is a wasteful number, since it uses less digits than its factorization.

1551322130472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56315 (or 56308 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 1551322130472 in words is "one trillion, five hundred fifty-one billion, three hundred twenty-two million, one hundred thirty thousand, four hundred seventy-two".