20015246346 has 16 divisors (see below), whose sum is σ = 41770949184. Its totient is φ = 6381672704.

The previous prime is 20015246341. The next prime is 20015246351. The reversal of 20015246346 is 64364251002.

It is an interprime number because it is at equal distance from previous prime (20015246341) and next prime (20015246351).

It is a super-2 number, since 2×20015246346² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20015246341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72518871 + ... + 72519146.

It is an arithmetic number, because the mean of its divisors is an integer number (2610684324).

Almost surely, 2^20015246346 is an apocalyptic number.

20015246346 is an abundant number, since it is smaller than the sum of its proper divisors (21755702838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20015246346 is a wasteful number, since it uses less digits than its factorization.

20015246346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145038045.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 20015246346 its reverse (64364251002), we get a palindrome (84379497348).

The spelling of 20015246346 in words is "twenty billion, fifteen million, two hundred forty-six thousand, three hundred forty-six".