351664131234 has 64 divisors (see below), whose sum is σ = 797476901760. Its totient is φ = 102486021120.

The previous prime is 351664131233. The next prime is 351664131241. The reversal of 351664131234 is 432131466153.

It is a super-2 number, since 2×351664131234² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 351664131192 and 351664131201.

It is not an unprimeable number, because it can be changed into a prime (351664131233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7114164 + ... + 7163424.

It is an arithmetic number, because the mean of its divisors is an integer number (12460576590).

Almost surely, 2^351664131234 is an apocalyptic number.

351664131234 is an abundant number, since it is smaller than the sum of its proper divisors (445812770526).

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

351664131234 is a wasteful number, since it uses less digits than its factorization.

351664131234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54115.

The product of its digits is 155520, while the sum is 39.

Adding to 351664131234 its reverse (432131466153), we get a palindrome (783795597387).

The spelling of 351664131234 in words is "three hundred fifty-one billion, six hundred sixty-four million, one hundred thirty-one thousand, two hundred thirty-four".