8158158461551 has 8 divisors (see below), whose sum is σ = 9645113452320. Its totient is φ = 6751579416288.

The previous prime is 8158158461491. The next prime is 8158158461573. The reversal of 8158158461551 is 1551648518518.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8158158461551 - 2¹⁷ = 8158158330479 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 (8158158461351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20093986156 + ... + 20093986561.

It is an arithmetic number, because the mean of its divisors is an integer number (1205639181540).

Almost surely, 2^{8158158461551} is an apocalyptic number.

8158158461551 is a deficient number, since it is larger than the sum of its proper divisors (1486954990769).

8158158461551 is a wasteful number, since it uses less digits than its factorization.

8158158461551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40187972753.

The product of its digits is 7680000, while the sum is 58.

The spelling of 8158158461551 in words is "eight trillion, one hundred fifty-eight billion, one hundred fifty-eight million, four hundred sixty-one thousand, five hundred fifty-one".