151699878 has 120 divisors (see below), whose sum is σ = 382369680. Its totient is φ = 44906400.

The previous prime is 151699843. The next prime is 151699883. The reversal of 151699878 is 878996151.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1088640) is a multiple of the sum of its prime factors (216).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1391688 + ... + 1391796.

It is an arithmetic number, because the mean of its divisors is an integer number (3186414).

Almost surely, 2^151699878 is an apocalyptic number.

151699878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 151699878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191184840).

151699878 is an abundant number, since it is smaller than the sum of its proper divisors (230669802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151699878 is a wasteful number, since it uses less digits than its factorization.

151699878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 196 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 54.

The square root of 151699878 is about 12316.6504375175. The cubic root of 151699878 is about 533.3288500491.

The spelling of 151699878 in words is "one hundred fifty-one million, six hundred ninety-nine thousand, eight hundred seventy-eight".