155211352450 has 288 divisors, whose sum is σ = 387575193600. Its totient is φ = 45131644800.

The previous prime is 155211352427. The next prime is 155211352493. The reversal of 155211352450 is 54253112551.

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 143 ways as a sum of consecutive naturals, for example, 53910111 + ... + 53912989.

It is an arithmetic number, because the mean of its divisors is an integer number (1345747200).

Almost surely, 2^155211352450 is an apocalyptic number.

155211352450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155211352450 is an abundant number, since it is smaller than the sum of its proper divisors (232363841150).

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

155211352450 is a wasteful number, since it uses less digits than its factorization.

155211352450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 155211352450 in words is "one hundred fifty-five billion, two hundred eleven million, three hundred fifty-two thousand, four hundred fifty".