1620077142213 has 20 divisors (see below), whose sum is σ = 2420324258220. Its totient is φ = 1079958146112.

The previous prime is 1620077142169. The next prime is 1620077142217. The reversal of 1620077142213 is 3122417700261.

1620077142213 is a `hidden beast` number, since 1 + 620 + 0 + 7 + 7 + 1 + 4 + 2 + 21 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1171206621729 + 448870520484 = 1082223^2 + 669978^2 .

It is not a de Polignac number, because 1620077142213 - 2¹² = 1620077138117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620077142217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86323 + ... + 1802111.

It is an arithmetic number, because the mean of its divisors is an integer number (121016212911).

Almost surely, 2^{1620077142213} is an apocalyptic number.

It is an amenable number.

1620077142213 is a deficient number, since it is larger than the sum of its proper divisors (800247116007).

1620077142213 is a wasteful number, since it uses less digits than its factorization.

1620077142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727458 (or 1727449 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 1620077142213 in words is "one trillion, six hundred twenty billion, seventy-seven million, one hundred forty-two thousand, two hundred thirteen".