1013401557055 has 4 divisors (see below), whose sum is σ = 1216081868472. Its totient is φ = 810721245640.

The previous prime is 1013401557041. The next prime is 1013401557059. The reversal of 1013401557055 is 5507551043101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1013401557055 - 2²¹ = 1013399459903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013401557059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101340155701 + ... + 101340155710.

It is an arithmetic number, because the mean of its divisors is an integer number (304020467118).

Almost surely, 2^{1013401557055} is an apocalyptic number.

1013401557055 is a deficient number, since it is larger than the sum of its proper divisors (202680311417).

1013401557055 is an equidigital number, since it uses as much as digits as its factorization.

1013401557055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202680311416.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 1013401557055 in words is "one trillion, thirteen billion, four hundred one million, five hundred fifty-seven thousand, fifty-five".