20546343246 has 64 divisors (see below), whose sum is σ = 49834100736. Its totient is φ = 5561827200.

The previous prime is 20546343211. The next prime is 20546343269. The reversal of 20546343246 is 64234364502.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359641 + ... + 412836.

It is an arithmetic number, because the mean of its divisors is an integer number (778657824).

Almost surely, 2^20546343246 is an apocalyptic number.

20546343246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20546343246 is an abundant number, since it is smaller than the sum of its proper divisors (29287757490).

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

20546343246 is a wasteful number, since it uses less digits than its factorization.

20546343246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772537.

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 20546343246 in words is "twenty billion, five hundred forty-six million, three hundred forty-three thousand, two hundred forty-six".