1158775041551 has 4 divisors (see below), whose sum is σ = 1158815441472. Its totient is φ = 1158734641632.

The previous prime is 1158775041527. The next prime is 1158775041587. The reversal of 1158775041551 is 1551405778511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1158775041551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158775041551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158775041751) 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, 20156906 + ... + 20214311.

It is an arithmetic number, because the mean of its divisors is an integer number (289703860368).

Almost surely, 2^{1158775041551} is an apocalyptic number.

1158775041551 is a deficient number, since it is larger than the sum of its proper divisors (40399921).

1158775041551 is an equidigital number, since it uses as much as digits as its factorization.

1158775041551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40399920.

The product of its (nonzero) digits is 980000, while the sum is 50.

The spelling of 1158775041551 in words is "one trillion, one hundred fifty-eight billion, seven hundred seventy-five million, forty-one thousand, five hundred fifty-one".