16420550151015 has 48 divisors (see below), whose sum is σ = 28572088184640. Its totient is φ = 8723845440000.

The previous prime is 16420550151013. The next prime is 16420550151017. The reversal of 16420550151015 is 51015105502461.

16420550151015 is a `hidden beast` number, since 1 + 6 + 42 + 0 + 5 + 501 + 5 + 101 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (16420550151013) and next prime (16420550151017).

It is not a de Polignac number, because 16420550151015 - 2¹ = 16420550151013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420550151013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 345664765 + ... + 345712265.

It is an arithmetic number, because the mean of its divisors is an integer number (595251837180).

Almost surely, 2^{16420550151015} is an apocalyptic number.

16420550151015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16420550151015 is a deficient number, since it is larger than the sum of its proper divisors (12151538033625).

16420550151015 is a wasteful number, since it uses less digits than its factorization.

16420550151015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76984 (or 76981 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

Adding to 16420550151015 its reverse (51015105502461), we get a palindrome (67435655653476).

The spelling of 16420550151015 in words is "sixteen trillion, four hundred twenty billion, five hundred fifty million, one hundred fifty-one thousand, fifteen".