343720612664 has 128 divisors (see below), whose sum is σ = 771924384000. Its totient is φ = 141416064000.

The previous prime is 343720612663. The next prime is 343720612691. The reversal of 343720612664 is 466216027343.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343720612663) 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, 27599639 + ... + 27612089.

It is an arithmetic number, because the mean of its divisors is an integer number (6030659250).

Almost surely, 2^343720612664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343720612664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385962192000).

343720612664 is an abundant number, since it is smaller than the sum of its proper divisors (428203771336).

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

343720612664 is a wasteful number, since it uses less digits than its factorization.

343720612664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949 (or 12945 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 343720612664 in words is "three hundred forty-three billion, seven hundred twenty million, six hundred twelve thousand, six hundred sixty-four".