1012255432551 has 24 divisors (see below), whose sum is σ = 1600100979984. Its totient is φ = 611552828160.

The previous prime is 1012255432543. The next prime is 1012255432567. The reversal of 1012255432551 is 1552345522101.

1012255432551 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 25 + 54 + 32 + 551 = 666.

It is not a de Polignac number, because 1012255432551 - 2³ = 1012255432543 is a prime.

It is a super-2 number, since 2×1012255432551² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012255432541) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16096066 + ... + 16158831.

It is an arithmetic number, because the mean of its divisors is an integer number (66670874166).

Almost surely, 2^{1012255432551} is an apocalyptic number.

1012255432551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012255432551 is a deficient number, since it is larger than the sum of its proper divisors (587845547433).

1012255432551 is a wasteful number, since it uses less digits than its factorization.

1012255432551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32255231 (or 32255228 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1012255432551 in words is "one trillion, twelve billion, two hundred fifty-five million, four hundred thirty-two thousand, five hundred fifty-one".