351232660020 has 96 divisors (see below), whose sum is σ = 1073879041536. Its totient is φ = 85066128000.

The previous prime is 351232660003. The next prime is 351232660033. The reversal of 351232660020 is 20066232153.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 351232660020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440487 + ... + 946833.

It is an arithmetic number, because the mean of its divisors is an integer number (11186240016).

Almost surely, 2^351232660020 is an apocalyptic number.

351232660020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351232660020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536939520768).

351232660020 is an abundant number, since it is smaller than the sum of its proper divisors (722646381516).

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

351232660020 is a wasteful number, since it uses less digits than its factorization.

351232660020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507421 (or 507419 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 351232660020 its reverse (20066232153), we get a palindrome (371298892173).

The spelling of 351232660020 in words is "three hundred fifty-one billion, two hundred thirty-two million, six hundred sixty thousand, twenty".