1620710324007 has 16 divisors (see below), whose sum is σ = 2182608833280. Its totient is φ = 1069664948352.

The previous prime is 1620710323963. The next prime is 1620710324027. The reversal of 1620710324007 is 7004230170261.

It is not a de Polignac number, because 1620710324007 - 2⁷ = 1620710323879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620710324027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491603 + ... + 3074004.

It is an arithmetic number, because the mean of its divisors is an integer number (136413052080).

Almost surely, 2^{1620710324007} is an apocalyptic number.

1620710324007 is a deficient number, since it is larger than the sum of its proper divisors (561898509273).

1620710324007 is a wasteful number, since it uses less digits than its factorization.

1620710324007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566582.

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 1620710324007 its reverse (7004230170261), we get a palindrome (8624940494268).

The spelling of 1620710324007 in words is "one trillion, six hundred twenty billion, seven hundred ten million, three hundred twenty-four thousand, seven".