151226121660 has 24 divisors (see below), whose sum is σ = 423433140816. Its totient is φ = 40326965760.

The previous prime is 151226121653. The next prime is 151226121661. The reversal of 151226121660 is 66121622151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151226121661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260217621 + ... + 1260217740.

It is an arithmetic number, because the mean of its divisors is an integer number (17643047534).

Almost surely, 2^151226121660 is an apocalyptic number.

151226121660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151226121660 is an abundant number, since it is smaller than the sum of its proper divisors (272207019156).

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

151226121660 is a wasteful number, since it uses less digits than its factorization.

151226121660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520435373 (or 2520435371 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 151226121660 in words is "one hundred fifty-one billion, two hundred twenty-six million, one hundred twenty-one thousand, six hundred sixty".