20434151558 has 8 divisors (see below), whose sum is σ = 30656933352. Its totient is φ = 10215173776.

The previous prime is 20434151539. The next prime is 20434151609. The reversal of 20434151558 is 85515143402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937535 + ... + 959082.

It is an arithmetic number, because the mean of its divisors is an integer number (3832116669).

Almost surely, 2^20434151558 is an apocalyptic number.

20434151558 is a deficient number, since it is larger than the sum of its proper divisors (10222781794).

20434151558 is a wasteful number, since it uses less digits than its factorization.

20434151558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902006.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 20434151558 in words is "twenty billion, four hundred thirty-four million, one hundred fifty-one thousand, five hundred fifty-eight".