151720620620 has 12 divisors (see below), whose sum is σ = 318613303344. Its totient is φ = 60688248240.

The previous prime is 151720620589. The next prime is 151720620659. The reversal of 151720620620 is 26026027151.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3793015496 + ... + 3793015535.

It is an arithmetic number, because the mean of its divisors is an integer number (26551108612).

Almost surely, 2^151720620620 is an apocalyptic number.

151720620620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151720620620 is an abundant number, since it is smaller than the sum of its proper divisors (166892682724).

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

151720620620 is a wasteful number, since it uses less digits than its factorization.

151720620620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586031040 (or 7586031038 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 151720620620 its reverse (26026027151), we get a palindrome (177746647771).

The spelling of 151720620620 in words is "one hundred fifty-one billion, seven hundred twenty million, six hundred twenty thousand, six hundred twenty".