15669801420100 has 27 divisors (see below), whose sum is σ = 34003554981501. Its totient is φ = 6267904734000.

The previous prime is 15669801420047. The next prime is 15669801420101. The reversal of 15669801420100 is 102410896651.

The square root of 15669801420100 is 3958510.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5641128511236 + 10028672908864 = 2375106^2 + 3166808^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15669801420101) 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 8 ways as a sum of consecutive naturals, for example, 39387175 + ... + 39783025.

Almost surely, 2^{15669801420100} is an apocalyptic number.

15669801420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15669801420100 is the 3958510-th square number.

It is an amenable number.

15669801420100 is an abundant number, since it is smaller than the sum of its proper divisors (18333753561401).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15669801420100 is an frugal number, since it uses more digits than its factorization.

15669801420100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791716 (or 395858 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 15669801420100 in words is "fifteen trillion, six hundred sixty-nine billion, eight hundred one million, four hundred twenty thousand, one hundred".