1621060063 has 8 divisors (see below), whose sum is σ = 1854793728. Its totient is φ = 1387864824.

The previous prime is 1621060043. The next prime is 1621060081. The reversal of 1621060063 is 3600601261.

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

It is a cyclic number.

It is not a de Polignac number, because 1621060063 - 2²⁹ = 1084189151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621060043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128131 + ... + 140212.

It is an arithmetic number, because the mean of its divisors is an integer number (231849216).

Almost surely, 2^1621060063 is an apocalyptic number.

1621060063 is a deficient number, since it is larger than the sum of its proper divisors (233733665).

1621060063 is an equidigital number, since it uses as much as digits as its factorization.

1621060063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269213.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1621060063 is about 40262.3901799185. The cubic root of 1621060063 is about 1174.7164097251.

The spelling of 1621060063 in words is "one billion, six hundred twenty-one million, sixty thousand, sixty-three".