1252162554654 has 256 divisors, whose sum is σ = 3070427627520. Its totient is φ = 335892264960.

The previous prime is 1252162554647. The next prime is 1252162554763. The reversal of 1252162554654 is 4564552612521.

It is a super-2 number, since 2×1252162554654² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 347146119 + ... + 347149725.

It is an arithmetic number, because the mean of its divisors is an integer number (11993857920).

Almost surely, 2^{1252162554654} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252162554654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535213813760).

1252162554654 is an abundant number, since it is smaller than the sum of its proper divisors (1818265072866).

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

1252162554654 is a wasteful number, since it uses less digits than its factorization.

1252162554654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943.

The product of its digits is 2880000, while the sum is 48.

The spelling of 1252162554654 in words is "one trillion, two hundred fifty-two billion, one hundred sixty-two million, five hundred fifty-four thousand, six hundred fifty-four".