420155042045 has 8 divisors (see below), whose sum is σ = 504192806496. Its totient is φ = 336119529616.

The previous prime is 420155042003. The next prime is 420155042051. The reversal of 420155042045 is 540240551024.

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 420155042045 - 2¹² = 420155037949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121007 + ... + 924636.

It is an arithmetic number, because the mean of its divisors is an integer number (63024100812).

Almost surely, 2^420155042045 is an apocalyptic number.

It is an amenable number.

420155042045 is a deficient number, since it is larger than the sum of its proper divisors (84037764451).

420155042045 is a wasteful number, since it uses less digits than its factorization.

420155042045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126011.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 420155042045 its reverse (540240551024), we get a palindrome (960395593069).

The spelling of 420155042045 in words is "four hundred twenty billion, one hundred fifty-five million, forty-two thousand, forty-five".