816618151 has 8 divisors (see below), whose sum is σ = 879611904. Its totient is φ = 755915160.

The previous prime is 816618113. The next prime is 816618161. The reversal of 816618151 is 151816618.

816618151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 816618151 - 2¹⁵ = 816585383 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 816618151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816618161) 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, 571951 + ... + 573376.

It is an arithmetic number, because the mean of its divisors is an integer number (109951488).

Almost surely, 2^816618151 is an apocalyptic number.

816618151 is a deficient number, since it is larger than the sum of its proper divisors (62993753).

816618151 is a wasteful number, since it uses less digits than its factorization.

816618151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145381.

The product of its digits is 11520, while the sum is 37.

The square root of 816618151 is about 28576.5314725213. The cubic root of 816618151 is about 934.7016505464.

The spelling of 816618151 in words is "eight hundred sixteen million, six hundred eighteen thousand, one hundred fifty-one".