720146640338 has 8 divisors (see below), whose sum is σ = 1088465914800. Its totient is φ = 357324668740.

The previous prime is 720146640337. The next prime is 720146640347. The reversal of 720146640338 is 833046641027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×720146640338² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (720146640337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374325388 + ... + 1374325911.

It is an arithmetic number, because the mean of its divisors is an integer number (136058239350).

Almost surely, 2^720146640338 is an apocalyptic number.

720146640338 is a deficient number, since it is larger than the sum of its proper divisors (368319274462).

720146640338 is a wasteful number, since it uses less digits than its factorization.

720146640338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748651432.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 720146640338 in words is "seven hundred twenty billion, one hundred forty-six million, six hundred forty thousand, three hundred thirty-eight".