1550203917072 has 20 divisors (see below), whose sum is σ = 4004693452560. Its totient is φ = 516734639008.

The previous prime is 1550203917043. The next prime is 1550203917103. The reversal of 1550203917072 is 2707193020551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16147957422 + ... + 16147957517.

It is an arithmetic number, because the mean of its divisors is an integer number (200234672628).

Almost surely, 2^{1550203917072} is an apocalyptic number.

1550203917072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1550203917072 is an abundant number, since it is smaller than the sum of its proper divisors (2454489535488).

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

1550203917072 is a wasteful number, since it uses less digits than its factorization.

1550203917072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32295914950 (or 32295914944 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 1550203917072 in words is "one trillion, five hundred fifty billion, two hundred three million, nine hundred seventeen thousand, seventy-two".