1621103331046 has 8 divisors (see below), whose sum is σ = 2432068490664. Its totient is φ = 810413834160.

The previous prime is 1621103331019. The next prime is 1621103331049. The reversal of 1621103331046 is 6401333011261.

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

It is a junction number, because it is equal to n+sod(n) for n = 1621103330999 and 1621103331017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621103331049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68900980 + ... + 68924503.

It is an arithmetic number, because the mean of its divisors is an integer number (304008561333).

Almost surely, 2^{1621103331046} is an apocalyptic number.

1621103331046 is a deficient number, since it is larger than the sum of its proper divisors (810965159618).

1621103331046 is a wasteful number, since it uses less digits than its factorization.

1621103331046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137831366.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 1621103331046 in words is "one trillion, six hundred twenty-one billion, one hundred three million, three hundred thirty-one thousand, forty-six".