220402420002457 has 8 divisors (see below), whose sum is σ = 274787432730432. Its totient is φ = 171742145456400.

The previous prime is 220402420002407. The next prime is 220402420002467. The reversal of 220402420002457 is 754200024204022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220402420002457 - 2⁷ = 220402420002329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220402420002407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431184545394 + ... + 1431184545547.

It is an arithmetic number, because the mean of its divisors is an integer number (34348429091304).

Almost surely, 2^{220402420002457} is an apocalyptic number.

It is an amenable number.

220402420002457 is a deficient number, since it is larger than the sum of its proper divisors (54385012727975).

220402420002457 is a wasteful number, since it uses less digits than its factorization.

220402420002457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862369090959.

The product of its (nonzero) digits is 71680, while the sum is 34.

Adding to 220402420002457 its reverse (754200024204022), we get a palindrome (974602444206479).

The spelling of 220402420002457 in words is "two hundred twenty trillion, four hundred two billion, four hundred twenty million, two thousand, four hundred fifty-seven".