23325321001545 has 84 divisors (see below), whose sum is σ = 42689753646276. Its totient is φ = 12229314189120.

The previous prime is 23325321001519. The next prime is 23325321001547. The reversal of 23325321001545 is 54510012352332.

23325321001545 is a `hidden beast` number, since 2 + 3 + 3 + 2 + 5 + 3 + 2 + 100 + 1 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11276459505936 + 12048861495609 = 3358044^2 + 3471147^2 .

It is not a de Polignac number, because 23325321001545 - 2¹² = 23325320997449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23325321001547) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 11769075 + ... + 13607415.

Almost surely, 2^{23325321001545} is an apocalyptic number.

It is an amenable number.

23325321001545 is a deficient number, since it is larger than the sum of its proper divisors (19364432644731).

23325321001545 is an frugal number, since it uses more digits than its factorization.

23325321001545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838482 (or 1838408 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 23325321001545 its reverse (54510012352332), we get a palindrome (77835333353877).

The spelling of 23325321001545 in words is "twenty-three trillion, three hundred twenty-five billion, three hundred twenty-one million, one thousand, five hundred forty-five".