1621554730114 has 16 divisors (see below), whose sum is σ = 2653531385760. Its totient is φ = 737048612160.

The previous prime is 1621554730111. The next prime is 1621554730153. The reversal of 1621554730114 is 4110374551261.

It is not an unprimeable number, because it can be changed into a prime (1621554730111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310119 + ... + 1827370.

It is an arithmetic number, because the mean of its divisors is an integer number (165845711610).

Almost surely, 2^{1621554730114} is an apocalyptic number.

1621554730114 is a deficient number, since it is larger than the sum of its proper divisors (1031976655646).

1621554730114 is a wasteful number, since it uses less digits than its factorization.

1621554730114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171985.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 1621554730114 in words is "one trillion, six hundred twenty-one billion, five hundred fifty-four million, seven hundred thirty thousand, one hundred fourteen".