620642161472 has 14 divisors (see below), whose sum is σ = 1231586789298. Its totient is φ = 310321080704.

The previous prime is 620642161417. The next prime is 620642161519. The reversal of 620642161472 is 274161246026.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 559779297856 + 60862863616 = 748184^2 + 246704^2 .

It is a super-2 number, since 2×620642161472² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4848766823 + ... + 4848766950.

Almost surely, 2^620642161472 is an apocalyptic number.

It is an amenable number.

620642161472 is a deficient number, since it is larger than the sum of its proper divisors (610944627826).

620642161472 is an equidigital number, since it uses as much as digits as its factorization.

620642161472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697533785 (or 9697533775 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 620642161472 in words is "six hundred twenty billion, six hundred forty-two million, one hundred sixty-one thousand, four hundred seventy-two".