155225457373700 has 144 divisors (see below), whose sum is σ = 388580884481664. Its totient is φ = 52719515520000.

The previous prime is 155225457373669. The next prime is 155225457373703. The reversal of 155225457373700 is 7373754522551.

It is not an unprimeable number, because it can be changed into a prime (155225457373703) 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 47 ways as a sum of consecutive naturals, for example, 1424019200 + ... + 1424128200.

It is an arithmetic number, because the mean of its divisors is an integer number (2698478364456).

Almost surely, 2^{155225457373700} is an apocalyptic number.

155225457373700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155225457373700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194290442240832).

155225457373700 is an abundant number, since it is smaller than the sum of its proper divisors (233355427107964).

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

155225457373700 is a wasteful number, since it uses less digits than its factorization.

155225457373700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128142 (or 128135 counting only the distinct ones).

The product of its (nonzero) digits is 30870000, while the sum is 56.

The spelling of 155225457373700 in words is "one hundred fifty-five trillion, two hundred twenty-five billion, four hundred fifty-seven million, three hundred seventy-three thousand, seven hundred".