151721521070 has 32 divisors (see below), whose sum is σ = 312653850048. Its totient is φ = 51928639488.

The previous prime is 151721521051. The next prime is 151721521097. The reversal of 151721521070 is 70125127151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837817 + ... + 1918596.

It is an arithmetic number, because the mean of its divisors is an integer number (9770432814).

Almost surely, 2^151721521070 is an apocalyptic number.

151721521070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151721521070 is an abundant number, since it is smaller than the sum of its proper divisors (160932328978).

151721521070 is a wasteful number, since it uses less digits than its factorization.

151721521070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757004.

The product of its (nonzero) digits is 4900, while the sum is 32.

The spelling of 151721521070 in words is "one hundred fifty-one billion, seven hundred twenty-one million, five hundred twenty-one thousand, seventy".