151221533466 has 16 divisors (see below), whose sum is σ = 302741640864. Its totient is φ = 50357415504.

The previous prime is 151221533443. The next prime is 151221533543. The reversal of 151221533466 is 664335122151.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12433996 + ... + 12446151.

It is an arithmetic number, because the mean of its divisors is an integer number (18921352554).

Almost surely, 2^151221533466 is an apocalyptic number.

151221533466 is an abundant number, since it is smaller than the sum of its proper divisors (151520107398).

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

151221533466 is a wasteful number, since it uses less digits than its factorization.

151221533466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24881165.

The product of its digits is 129600, while the sum is 39.

The spelling of 151221533466 in words is "one hundred fifty-one billion, two hundred twenty-one million, five hundred thirty-three thousand, four hundred sixty-six".