1620226001524 has 12 divisors (see below), whose sum is σ = 3053502849124. Its totient is φ = 747796616064.

The previous prime is 1620226001489. The next prime is 1620226001531. The reversal of 1620226001524 is 4251006220261.

It can be written as a sum of positive squares in 2 ways, for example, as 888400502500 + 731825499024 = 942550^2 + 855468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15579096117 + ... + 15579096220.

Almost surely, 2^{1620226001524} is an apocalyptic number.

It is an amenable number.

1620226001524 is a deficient number, since it is larger than the sum of its proper divisors (1433276847600).

1620226001524 is a wasteful number, since it uses less digits than its factorization.

1620226001524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31158192354 (or 31158192352 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 1620226001524 in words is "one trillion, six hundred twenty billion, two hundred twenty-six million, one thousand, five hundred twenty-four".