151540323221000 has 128 divisors (see below), whose sum is σ = 409049620012800. Its totient is φ = 51471105523200.

The previous prime is 151540323220973. The next prime is 151540323221009. The reversal of 151540323221000 is 122323045151.

It is not an unprimeable number, because it can be changed into a prime (151540323221009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100412765 + ... + 101910764.

It is an arithmetic number, because the mean of its divisors is an integer number (3195700156350).

Almost surely, 2^{151540323221000} is an apocalyptic number.

151540323221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151540323221000 is an abundant number, since it is smaller than the sum of its proper divisors (257509296791800).

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

151540323221000 is a wasteful number, since it uses less digits than its factorization.

151540323221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202323664 (or 202323650 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 151540323221000 its reverse (122323045151), we get a palindrome (151662646266151).

The spelling of 151540323221000 in words is "one hundred fifty-one trillion, five hundred forty billion, three hundred twenty-three million, two hundred twenty-one thousand".