255364222470 has 128 divisors (see below), whose sum is σ = 722085138432. Its totient is φ = 56582323200.

The previous prime is 255364222459. The next prime is 255364222471. The reversal of 255364222470 is 74222463552.

It is a happy number.

It is a super-2 number, since 2×255364222470² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255364222471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1257315 + ... + 1446225.

It is an arithmetic number, because the mean of its divisors is an integer number (5641290144).

Almost surely, 2^255364222470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255364222470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361042569216).

255364222470 is an abundant number, since it is smaller than the sum of its proper divisors (466720915962).

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

255364222470 is a wasteful number, since it uses less digits than its factorization.

255364222470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189126.

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 255364222470 in words is "two hundred fifty-five billion, three hundred sixty-four million, two hundred twenty-two thousand, four hundred seventy".