1466620025 has 18 divisors (see below), whose sum is σ = 1969268490. Its totient is φ = 1083039360.

The previous prime is 1466620019. The next prime is 1466620027. The reversal of 1466620025 is 5200266641.

It can be written as a sum of positive squares in 9 ways, for example, as 1067459584 + 399160441 = 32672^2 + 19979^2 .

It is not a de Polignac number, because 1466620025 - 2⁴ = 1466620009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1466619973 and 1466620000.

It is not an unprimeable number, because it can be changed into a prime (1466620027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169340 + ... + 177789.

It is an arithmetic number, because the mean of its divisors is an integer number (109403805).

Almost surely, 2^1466620025 is an apocalyptic number.

It is an amenable number.

1466620025 is a deficient number, since it is larger than the sum of its proper divisors (502648465).

1466620025 is a wasteful number, since it uses less digits than its factorization.

1466620025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347165 (or 347147 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1466620025 is about 38296.4753600119. The cubic root of 1466620025 is about 1136.1592365989.

Adding to 1466620025 its reverse (5200266641), we get a palindrome (6666886666).

The spelling of 1466620025 in words is "one billion, four hundred sixty-six million, six hundred twenty thousand, twenty-five".