151226615668 has 12 divisors (see below), whose sum is σ = 264651159780. Its totient is φ = 75611998592.

The previous prime is 151226615647. The next prime is 151226615693. The reversal of 151226615668 is 866516622151.

It can be written as a sum of positive squares in 2 ways, for example, as 122750728164 + 28475887504 = 350358^2 + 168748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39253 + ... + 551356.

It is an arithmetic number, because the mean of its divisors is an integer number (22054263315).

Almost surely, 2^151226615668 is an apocalyptic number.

It is an amenable number.

151226615668 is a deficient number, since it is larger than the sum of its proper divisors (113424544112).

151226615668 is a wasteful number, since it uses less digits than its factorization.

151226615668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654626 (or 654624 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The spelling of 151226615668 in words is "one hundred fifty-one billion, two hundred twenty-six million, six hundred fifteen thousand, six hundred sixty-eight".