8158196503 has 8 divisors (see below), whose sum is σ = 8472994560. Its totient is φ = 7849282680.

The previous prime is 8158196491. The next prime is 8158196549. The reversal of 8158196503 is 3056918518.

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

It is a cyclic number.

It is not a de Polignac number, because 8158196503 - 2⁵ = 8158196471 is a prime.

It is a super-2 number, since 2×8158196503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8158196593) 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, 1468233 + ... + 1473778.

It is an arithmetic number, because the mean of its divisors is an integer number (1059124320).

Almost surely, 2^8158196503 is an apocalyptic number.

8158196503 is a deficient number, since it is larger than the sum of its proper divisors (314798057).

8158196503 is a wasteful number, since it uses less digits than its factorization.

8158196503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942117.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 8158196503 is about 90322.7352497698. The cubic root of 8158196503 is about 2013.0970878456.

It can be divided in two parts, 81581 and 96503, that added together give a square (178084 = 422²).

The spelling of 8158196503 in words is "eight billion, one hundred fifty-eight million, one hundred ninety-six thousand, five hundred three".