420154330215 has 8 divisors (see below), whose sum is σ = 672246928368. Its totient is φ = 224082309440.

The previous prime is 420154330201. The next prime is 420154330249. The reversal of 420154330215 is 512033451024.

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

It is a de Polignac number, because none of the positive numbers 2^k-420154330215 is a prime.

It is a super-2 number, since 2×420154330215² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 14005144326 + ... + 14005144355.

It is an arithmetic number, because the mean of its divisors is an integer number (84030866046).

Almost surely, 2^420154330215 is an apocalyptic number.

420154330215 is a deficient number, since it is larger than the sum of its proper divisors (252092598153).

420154330215 is a wasteful number, since it uses less digits than its factorization.

420154330215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28010288689.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 420154330215 its reverse (512033451024), we get a palindrome (932187781239).

The spelling of 420154330215 in words is "four hundred twenty billion, one hundred fifty-four million, three hundred thirty thousand, two hundred fifteen".