1001553512442 has 16 divisors (see below), whose sum is σ = 2289265171392. Its totient is φ = 286158146400.

The previous prime is 1001553512359. The next prime is 1001553512461. The reversal of 1001553512442 is 2442153551001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11923256059 + ... + 11923256142.

It is an arithmetic number, because the mean of its divisors is an integer number (143079073212).

Almost surely, 2^{1001553512442} is an apocalyptic number.

1001553512442 is an abundant number, since it is smaller than the sum of its proper divisors (1287711658950).

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

1001553512442 is a wasteful number, since it uses less digits than its factorization.

1001553512442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23846512213.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 1001553512442 in words is "one trillion, one billion, five hundred fifty-three million, five hundred twelve thousand, four hundred forty-two".