1155026242645 has 32 divisors (see below), whose sum is σ = 1521346904064. Its totient is φ = 834861000000.

The previous prime is 1155026242619. The next prime is 1155026242691. The reversal of 1155026242645 is 5462426205511.

It is a happy number.

It is not a de Polignac number, because 1155026242645 - 2⁵ = 1155026242613 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 5864520 + ... + 6058270.

It is an arithmetic number, because the mean of its divisors is an integer number (47542090752).

Almost surely, 2^{1155026242645} is an apocalyptic number.

It is an amenable number.

1155026242645 is a deficient number, since it is larger than the sum of its proper divisors (366320661419).

1155026242645 is a wasteful number, since it uses less digits than its factorization.

1155026242645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194433.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 1155026242645 in words is "one trillion, one hundred fifty-five billion, twenty-six million, two hundred forty-two thousand, six hundred forty-five".