20366070542 has 4 divisors (see below), whose sum is σ = 30549105816. Its totient is φ = 10183035270.

The previous prime is 20366070541. The next prime is 20366070559. The reversal of 20366070542 is 24507066302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366070541) by changing a digit.

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 as a sum of consecutive naturals, namely, 5091517634 + ... + 5091517637.

It is an arithmetic number, because the mean of its divisors is an integer number (7637276454).

Almost surely, 2^20366070542 is an apocalyptic number.

20366070542 is a deficient number, since it is larger than the sum of its proper divisors (10183035274).

20366070542 is a wasteful number, since it uses less digits than its factorization.

20366070542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10183035273.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 20366070542 in words is "twenty billion, three hundred sixty-six million, seventy thousand, five hundred forty-two".