1055145044155 has 32 divisors (see below), whose sum is σ = 1341119628288. Its totient is φ = 795279408000.

The previous prime is 1055145044111. The next prime is 1055145044227. The reversal of 1055145044155 is 5514405415501.

It is a happy number.

It is not a de Polignac number, because 1055145044155 - 2¹³ = 1055145035963 is a prime.

It is a super-2 number, since 2×1055145044155² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8519937 + ... + 8642893.

It is an arithmetic number, because the mean of its divisors is an integer number (41909988384).

Almost surely, 2^{1055145044155} is an apocalyptic number.

1055145044155 is a deficient number, since it is larger than the sum of its proper divisors (285974584133).

1055145044155 is a wasteful number, since it uses less digits than its factorization.

1055145044155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124107.

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 1055145044155 in words is "one trillion, fifty-five billion, one hundred forty-five million, forty-four thousand, one hundred fifty-five".