1620104116522 has 8 divisors (see below), whose sum is σ = 2535815138976. Its totient is φ = 774832403532.

The previous prime is 1620104116487. The next prime is 1620104116537. The reversal of 1620104116522 is 2256114010261.

It is a happy number.

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

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, 17609827308 + ... + 17609827399.

It is an arithmetic number, because the mean of its divisors is an integer number (316976892372).

Almost surely, 2^{1620104116522} is an apocalyptic number.

1620104116522 is a deficient number, since it is larger than the sum of its proper divisors (915711022454).

1620104116522 is a wasteful number, since it uses less digits than its factorization.

1620104116522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35219654732.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 1620104116522 its reverse (2256114010261), we get a palindrome (3876218126783).

The spelling of 1620104116522 in words is "one trillion, six hundred twenty billion, one hundred four million, one hundred sixteen thousand, five hundred twenty-two".