151706721650 has 24 divisors (see below), whose sum is σ = 307826730864. Its totient is φ = 55166080400.

The previous prime is 151706721631. The next prime is 151706721659. The reversal of 151706721650 is 56127607151.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 151706721598 and 151706721607.

It is not an unprimeable number, because it can be changed into a prime (151706721659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137914652 + ... + 137915751.

It is an arithmetic number, because the mean of its divisors is an integer number (12826113786).

Almost surely, 2^151706721650 is an apocalyptic number.

151706721650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151706721650 is an abundant number, since it is smaller than the sum of its proper divisors (156120009214).

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

151706721650 is a wasteful number, since it uses less digits than its factorization.

151706721650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275830426 (or 275830421 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 151706721650 in words is "one hundred fifty-one billion, seven hundred six million, seven hundred twenty-one thousand, six hundred fifty".