151721849405 has 64 divisors (see below), whose sum is σ = 223140096000. Its totient is φ = 96722512128.

The previous prime is 151721849399. The next prime is 151721849423. The reversal of 151721849405 is 504948127151.

It is not a de Polignac number, because 151721849405 - 2¹⁰ = 151721848381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151721849405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11978966 + ... + 11991624.

It is an arithmetic number, because the mean of its divisors is an integer number (3486564000).

Almost surely, 2^151721849405 is an apocalyptic number.

It is an amenable number.

151721849405 is a deficient number, since it is larger than the sum of its proper divisors (71418246595).

151721849405 is a wasteful number, since it uses less digits than its factorization.

151721849405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13026.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 151721849405 in words is "one hundred fifty-one billion, seven hundred twenty-one million, eight hundred forty-nine thousand, four hundred five".