145551660402053 has 4 divisors (see below), whose sum is σ = 145582478035488. Its totient is φ = 145520842768620.

The previous prime is 145551660401989. The next prime is 145551660402073. The reversal of 145551660402053 is 350204066155541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145551660402053 - 2⁶ = 145551660401989 is a prime.

It is a super-2 number, since 2×145551660402053² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145551660401989 and 145551660402007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145551660402073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15408809633 + ... + 15408819078.

It is an arithmetic number, because the mean of its divisors is an integer number (36395619508872).

Almost surely, 2^{145551660402053} is an apocalyptic number.

It is an amenable number.

145551660402053 is a deficient number, since it is larger than the sum of its proper divisors (30817633435).

145551660402053 is an equidigital number, since it uses as much as digits as its factorization.

145551660402053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30817633434.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 145551660402053 in words is "one hundred forty-five trillion, five hundred fifty-one billion, six hundred sixty million, four hundred two thousand, fifty-three".