420415032301551 has 36 divisors (see below), whose sum is σ = 711493751241000. Its totient is φ = 238508836378848.

The previous prime is 420415032301519. The next prime is 420415032301577. The reversal of 420415032301551 is 155103230514024.

420415032301551 is a `hidden beast` number, since 4 + 2 + 0 + 41 + 5 + 0 + 32 + 30 + 1 + 551 = 666.

It is not a de Polignac number, because 420415032301551 - 2⁵ = 420415032301519 is a prime.

It is a super-2 number, since 2×420415032301551² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420415032309551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3429154776 + ... + 3429277373.

It is an arithmetic number, because the mean of its divisors is an integer number (19763715312250).

Almost surely, 2^{420415032301551} is an apocalyptic number.

420415032301551 is a deficient number, since it is larger than the sum of its proper divisors (291078718939449).

420415032301551 is a wasteful number, since it uses less digits than its factorization.

420415032301551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6858432308 (or 6858432298 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 420415032301551 its reverse (155103230514024), we get a palindrome (575518262815575).

The spelling of 420415032301551 in words is "four hundred twenty trillion, four hundred fifteen billion, thirty-two million, three hundred one thousand, five hundred fifty-one".