20366442525 has 96 divisors (see below), whose sum is σ = 39969191808. Its totient is φ = 9020620800.

The previous prime is 20366442511. The next prime is 20366442533. The reversal of 20366442525 is 52524466302.

It is not a de Polignac number, because 20366442525 - 2¹¹ = 20366440477 is a prime.

It is a super-2 number, since 2×20366442525² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1030537 + ... + 1050113.

It is an arithmetic number, because the mean of its divisors is an integer number (416345748).

Almost surely, 2^20366442525 is an apocalyptic number.

20366442525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20366442525 is a deficient number, since it is larger than the sum of its proper divisors (19602749283).

20366442525 is a wasteful number, since it uses less digits than its factorization.

20366442525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19711 (or 19706 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 20366442525 in words is "twenty billion, three hundred sixty-six million, four hundred forty-two thousand, five hundred twenty-five".