151666550 has 48 divisors (see below), whose sum is σ = 339383040. Its totient is φ = 49260960.

The previous prime is 151666523. The next prime is 151666583. The reversal of 151666550 is 55666151.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 151666550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4754 + ... + 18053.

It is an arithmetic number, because the mean of its divisors is an integer number (7070480).

Almost surely, 2^151666550 is an apocalyptic number.

151666550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151666550 is an abundant number, since it is smaller than the sum of its proper divisors (187716490).

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

151666550 is a wasteful number, since it uses less digits than its factorization.

151666550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22845 (or 22840 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 151666550 is about 12315.2973979519. The cubic root of 151666550 is about 533.2897902819.

The spelling of 151666550 in words is "one hundred fifty-one million, six hundred sixty-six thousand, five hundred fifty".